™
PROFET + 24V
BTT6200-4ESA
Diagnostic functions
Load is present
Open load
VIN
VOUT
t
VS-VOL(OFF)
shutdown with load
RDS(ON) x IL
t
t
IOUT
tsIS(FAULT_OL_ON_OFF)
IIS
tsIS(LC)
t
Error Settling Disabling Time.vsd
Figure 26
Sense signal in open load timing
7.3.4
SENSE signal in short circuit to VS
In case of a short circuit between the OUTput-pin and the VS pin, all or portion (depending on the short circuit
impedance) of the load current will flow through the short circuit. As a result, a lower current compared to the
normal operation will flow through the DMOS of the BTT6200-4ESA, which can be recognized at the current
sense signal. The open load at OFF detection circuitry can also be used to distinguish a short circuit to VS. In
that case, an external resistor to ground RSC_VS is required. Figure 27 gives a sketch of the situation.
Datasheet
33
Rev. 1.00
2019-03-09